//prints text starting at str
//prints exactly len chars
void debug_txt_limit(char *str, uint8_t len)
{
while(len)
{
debug_ascii(*str);
str++;
len--;
}
}
void parse_http_packet(u_char *args, const struct pcap_pkthdr *header, const u_char *pkt) {
char *header_line, *req_value;
int is_request = 0, is_response = 0;
const struct ip_header *ip;
const struct tcp_header *tcp;
const char *data;
int ip_headlen, tcp_headlen, data_len, family;
ip = (struct ip_header *) (pkt + link_header_offset);
switch (IP_V(ip)) {
case 4:
family = AF_INET;
break;
default:
return;
}
ip_headlen = IP_HL(ip) * 4;
if (ip_headlen < 20) return;
if (ip->ip_p != IPPROTO_TCP) return;
tcp = (struct tcp_header *) ((char *)ip + ip_headlen);
tcp_headlen = TH_OFF(tcp) * 4;
if (tcp_headlen< 20) return;
data = (char *)tcp + tcp_headlen;
data_len = (header->caplen - (link_header_offset + ip_headlen + tcp_headlen));
if (data_len <= 0) return;
if (have_request_method(data)) {
is_request = 1;
} else if (strncmp(data, "HTTP/", strlen("HTTP/")) == 0) {
is_response = 1;
} else {
return;
}
if (data_len > BUFSIZ) data_len = BUFSIZ;
memcpy(buf, data, data_len);
buf[data_len-1] = '\0';
if (is_request) {
char *p = strchr(buf, '?');
if(p) *p = '\0';
debug_ascii(buf, data_len, "TEST" );
}
else if (is_response) {
}
return;
}
